发明名称 Modified gap for jewelry rope chain link
摘要 A double helix jewelry chain is constructed from a series of interconnected chain links. Each link is formed with an open mouth defined between a pair of end faces. The end faces are aligned with one another in various predetermined geometrical and dimensional relationships in order to maintain a minimum projected gap or clearance opening equal to or less than the major dimension of an elongated cross section of each link.
申请公布号 US6158206(A) 申请公布日期 2000.12.12
申请号 US19990375738 申请日期 1999.08.17
申请人 D&W JEWELRY, INC. 发明人 ROSENWASSER, DAVID;ROSENWASSER, AVRAM MOSHE
分类号 A44C11/00;B21L11/00;(IPC1-7):B21L5/02;F16G13/00 主分类号 A44C11/00
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